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Projection Printing
Projection printing, keep away from mask damage entirely. An image of the patterns on the mask is projected onto the resist-coated wafer, which are many centimetres away. In order to achieve high resolution, only a small portion of the mask is imaged. This small image field is scanned or stepped above the surface of the wafer. Projection printers that step the mask image over the wafer surface are known as step-and-repeat systems. Step-and-repeat projection printers are able of approximately 1-micron resolution.
Properties of filament and contact materials. The Filament materials must have low resistance temperature co-efficient, high melting point, high mechanical strength, ductility
calculate the volume at (160c) and 221c if the quality is 0.85
In a ferroelectric material, the spontaneous polarization vanishes above Curie temperature.
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how do you prepare and use preparatory thin layer chromatography plates
tell me everything about titration
Applications of permanent magnets a - Applications based on attraction or repulsion forces b - Applications based on Faraday's induction law c- Application based on Lor
What is the aim of shear stress distribution?
industrial applications-photochemistry
compare boron and aluminium with carbon and silicon
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